[PATCH v2 2/7] md: don't wait faulty rdev in md_wait_for_blocked_rdev()

From: Yu Kuai
Date: Thu Oct 10 2024 - 21:18:41 EST


From: Yu Kuai <yukuai3@xxxxxxxxxx>

md_wait_for_blocked_rdev() is called for write IO while rdev is
blocked, howerver, rdev can be faulty after choosing this rdev to write,
and faulty rdev should never be accessed anymore, hence there is no point
to wait for faulty rdev to be unblocked.

Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
drivers/md/md.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 179ee4afe937..37d1469bfc82 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -9762,9 +9762,7 @@ EXPORT_SYMBOL(md_reap_sync_thread);
void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev)
{
sysfs_notify_dirent_safe(rdev->sysfs_state);
- wait_event_timeout(rdev->blocked_wait,
- !test_bit(Blocked, &rdev->flags) &&
- !test_bit(BlockedBadBlocks, &rdev->flags),
+ wait_event_timeout(rdev->blocked_wait, rdev_blocked(rdev),
msecs_to_jiffies(5000));
rdev_dec_pending(rdev, mddev);
}
--
2.39.2